Alert archive / Wyoming / Blizzard Warnings in 2023

Blizzard Warning 3, NWS Cheyenne, WY

April 3, 20234 counties in Wyoming; Dawes County, Sioux County, Nebraska

NWS Cheyenne, WY issued this blizzard warning at Apr 3, 2023, 2:57 PM MDT for 4 counties in Wyoming; Dawes County, Sioux County, Nebraska. It took effect at Apr 3, 2023, 6:00 PM MDT. It was in force for 24 hr. 60 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 3, 2023, 2:57 PM MDT (20:57 UTC)
In effect from
Apr 3, 2023, 6:00 PM MDT
Expired
Apr 4, 2023, 6:00 PM MDT
In force
24 hr
Issued by
NWS Cheyenne, WY

Counties Dawes County, NE, Sioux County, NE, Albany County, WY, Carbon County, WY, Converse County, WY, Niobrara County, WY

The radar

The Cheyenne radar (KCYS), 143 km from the middle of the area, began a volume at 20:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Apr 3, 11:16 PM MDTBLIZZARD2 Nw Shirley Basin, WYBLIZZARD CONDITIONS OBSERVED FROM 754PM ON 3 APRIL TO.
Apr 3, 11:16 PM MDTBLIZZARD2 Nw Shirley Basin, WYBLIZZARD CONDITIONS OBSERVED FROM 754PM ON 3 APRIL TO 1116PM ON 3 APRIL. VISIBILITY UNDER A QUARTER MILE AND WIND GUSTS TO 38 MPH.
Apr 4, 1:54 AM MDTBLIZZARD3 Ese Elk Mountain, WYBLIZZARD CONDITIONS OBSERVED FROM 950PM ON 3 APRIL TO.
Apr 4, 1:54 AM MDTBLIZZARD3 Ese Elk Mountain, WYBLIZZARD CONDITIONS OBSERVED FROM 950PM ON 3 APRIL TO 154AM ON 4 APRIL. VISIBILITY QUATER MILE OR LESS WITH WIND GUSTS TO 49 MPH.
Apr 4, 4:00 AM MDTBLIZZARD7 Nw Elk Mountain, WYBLIZZARD CONDITIONS OBSERVED BETWEEN 950PM ON 3 APRIL AND.
Apr 4, 4:00 AM MDTBLIZZARD7 Nw Elk Mountain, WYBLIZZARD CONDITIONS OBSERVED BETWEEN 950PM ON 3 APRIL AND 400AM 4 APRIL. VISIBILITY QUARTER MILE OR LESS WITH WIND GUSTS TO 50 MPH.
Apr 4, 6:00 AM MDTBLIZZARD2 Ne Rawlins, WYBLIZZARD CONDITIONS OBSERVED FROM 228AM ON 4 APRIL TO 6AM ON 4 APRIL. VISIBILITY UNDER A QUARTER MILE AND WIND GUSTS OF 46 MPH.
Apr 4, 6:00 AM MDTBLIZZARD2 Ne Rawlins, WYBLIZZARD CONDITIONS OBSERVED FROM 228AM ON 4 APRIL TO 6AM ON 4 APRIL. VISIBILITY UNDER A QUARTER MILE AND WIND GUSTS OF 46 MPH.
Apr 4, 7:00 AM MDTSNOW 1.71 Se Laramie, WY
Apr 4, 7:00 AM MDTSNOW 1.71 Se Laramie, WY
Apr 4, 7:00 AM MDTSNOW 2.21 N Laramie, WY0.13 INCH MELTED DOWN.
Apr 4, 7:00 AM MDTSNOW 2.21 N Laramie, WY0.13 INCH MELTED DOWN.
Apr 4, 7:00 AM MDTSNOW 5.9Sw Elk Mountain, WY0.23 INCH LIQUID.
Apr 4, 7:00 AM MDTSNOW 5.9Sw Elk Mountain, WY0.23 INCH LIQUID.
Apr 4, 7:00 AM MDTSNOW 7.25 Wsw Sugar Loaf Campgr, WYNORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTSNOW 7.25 Wsw Sugar Loaf Campgr, WYNORTH FRENCH CREEK SNOTEL IN THE SNOWY RANGE. ELEVATION 10130 FEET. SNOW WATER EQUIVALENT IS 0.4 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTHEAVY SNOW 8.522 Ne Laramie, WY
Apr 4, 7:00 AM MDTHEAVY SNOW 8.522 Ne Laramie, WY
Apr 4, 7:00 AM MDTSNOW 92 Nw Jack Creek Campgro, WYDIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS 0.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTSNOW 92 Nw Jack Creek Campgro, WYDIVIDE PEAK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8880 FEET. SNOW WATER EQUIVALENT IS 0.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTHEAVY SNOW 92 Se Yellow Pine Campgr, WYCROW CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8330 FEET. SNOW WATER EQUIVALENT IS 0.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 6 INCHES ESTIMATED 4/1AM.
Apr 4, 7:00 AM MDTHEAVY SNOW 92 Se Yellow Pine Campgr, WYCROW CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8330 FEET. SNOW WATER EQUIVALENT IS 0.6 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 6 INCHES ESTIMATED 4/1AM.
Apr 4, 7:00 AM MDTSNOW 10.54 Nw Hog Park Reservoir, WYLITTLE SNAKE RIVER SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8915 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTSNOW 10.54 Nw Hog Park Reservoir, WYLITTLE SNAKE RIVER SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8915 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTSNOW 10.58 Ene Hog Park Campgrou, WYBLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTSNOW 10.58 Ene Hog Park Campgrou, WYBLACKHALL MOUNTAIN SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9820 FEET. SNOW WATER EQUIVALENT IS 0.7 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTHEAVY SNOW 122 Wsw Bottle Creek Camp, WYWEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTHEAVY SNOW 122 Wsw Bottle Creek Camp, WYWEBBER SPRINGS SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 9250 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS.
Apr 4, 7:00 AM MDTHEAVY SNOW 131 Nne Centennial, WY0.56 INCH MELTED DOWN LIQUID.
Apr 4, 7:00 AM MDTHEAVY SNOW 131 Nne Centennial, WY0.56 INCH MELTED DOWN LIQUID.
Apr 4, 7:00 AM MDTHEAVY SNOW 14.43 Wnw Sugar Loaf Campgr, WYMEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED 4 APRIL AT MIDNIGHT.
Apr 4, 7:00 AM MDTHEAVY SNOW 14.43 Wnw Sugar Loaf Campgr, WYMEDICINE BOW SNOTEL IN THE SNOWY RANGE. ELEVATION 10500 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED 4 APRIL AT MIDNIGHT.
Apr 4, 7:00 AM MDTHEAVY SNOW 14.44 S Bow River Campgroun, WYSAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED 4/4AM.
Apr 4, 7:00 AM MDTHEAVY SNOW 14.44 S Bow River Campgroun, WYSAND LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10050 FEET. SNOW WATER EQUIVALENT IS 0.8 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED 4/4AM.
Apr 4, 7:00 AM MDTHEAVY SNOW 153 Wsw Hog Park Reservoi, WYWHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED AT 3 APRIL AT 7 PM.
Apr 4, 7:00 AM MDTHEAVY SNOW 153 Wsw Hog Park Reservoi, WYWHISKEY PARK SNOTEL IN THE SIERRA MADRE RANGE. ELEVATION 8950 FEET. SNOW WATER EQUIVALENT IS 1.0 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED AT 3 APRIL AT 7 PM.
Apr 4, 7:00 AM MDTHEAVY SNOW 19.51 Ssw Windy Peak, WYWINDY PEAK SNOTEL IN THE LARAMIE RANGE. ELEVATION 7900 FEET. SNOW WATER EQUIVALENT IS 1.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED 3 APRIL AT 8PM.
Apr 4, 7:00 AM MDTHEAVY SNOW 19.51 Ssw Windy Peak, WYWINDY PEAK SNOTEL IN THE LARAMIE RANGE. ELEVATION 7900 FEET. SNOW WATER EQUIVALENT IS 1.3 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 15 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED 3 APRIL AT 8PM.
Apr 4, 7:00 AM MDTHEAVY SNOW 21.6Ene Nash Fork Campgroun, WYBROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED 3 APRIL AT 9PM.
Apr 4, 7:00 AM MDTHEAVY SNOW 21.6Ene Nash Fork Campgroun, WYBROOKLYN LAKE SNOTEL IN THE SNOWY RANGE. ELEVATION 10240 FEET. SNOW WATER EQUIVALENT IS 1.2 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED 3 APRIL AT 9PM.
Apr 4, 7:00 AM MDTHEAVY SNOW 272 Sw Campbell Creek Cam, WYLA PRELE CREEK SNOTEL IN THE LARAMIE RANGE. ELEVATION 8375 FEET. SNOW WATER EQUIVALENT IS 1.5 INCHES AND THE SNOW TO LIQUID RATIO USED WAS 18 TO 1. ACCUMULATION WAS OVER PAST 32 HOURS. 12 INCHES ESTIMATED ON 3 APRIL 6 PM.
Apr 4, 7:25 AM MDTHEAVY SNOW 1310 Wsw Rock River, WY
Apr 4, 7:25 AM MDTHEAVY SNOW 1310 Wsw Rock River, WY
Apr 4, 7:38 AM MDTSNOW 4Laramie, WYREPORT RECEIVED VIA FACEBOOK. WINDY CONDITIONS.
Apr 4, 7:38 AM MDTSNOW 4Laramie, WYREPORT RECEIVED VIA FACEBOOK. WINDY CONDITIONS.
Apr 4, 7:57 AM MDTHEAVY SNOW 2310 Wnw Shirley Basin, WYPUBLIC REPORT VIA FACEBOOK
Apr 4, 7:57 AM MDTHEAVY SNOW 2310 Wnw Shirley Basin, WYPUBLIC REPORT VIA FACEBOOK.
Apr 4, 8:00 AM MDTHEAVY SNOW 1014 Ssw Provo, NE24-HOUR SNOWFALL.
Apr 4, 8:00 AM MDTHEAVY SNOW 17Douglas, WYREPORT RECEIVED VIA FACEBOOK.
Apr 4, 8:00 AM MDTHEAVY SNOW 17Douglas, WYREPORT RECEIVED VIA FACEBOOK.
Apr 4, 8:00 AM MDTHEAVY SNOW 20Manville, WYREPORT RECEIVED VIA FACEBOOK. 18-20 INCHES REPORTED.
Apr 4, 8:00 AM MDTHEAVY SNOW 20Manville, WYREPORT RECEIVED VIA FACEBOOK. 18-20 INCHES REPORTED.
Apr 4, 8:04 AM MDTSNOW 4W Laramie, WYPUBLIC REPORT VIA FACEBOOK
Apr 4, 8:04 AM MDTSNOW 4W Laramie, WYPUBLIC REPORT VIA FACEBOOK.
Apr 4, 8:32 AM MDTHEAVY SNOW 22Glenrock, WYPUBLIC REPORT VIA FACEBOOK.
Apr 4, 8:32 AM MDTHEAVY SNOW 22Glenrock, WYPUBLIC REPORT VIA FACEBOOK.
Apr 4, 8:37 AM MDTHEAVY SNOW 20Nw Lusk, WYPUBLIC REPORT VIA FACEBOOK.
Apr 4, 8:37 AM MDTHEAVY SNOW 20Nw Lusk, WYPUBLIC REPORT VIA FACEBOOK.
Apr 4, 8:45 AM MDTHEAVY SNOW 10Chadron, NEPUBLIC REPORT VIA TWITTER.
Apr 4, 8:45 AM MDTHEAVY SNOW 10Chadron, NEPUBLIC REPORT VIA TWITTER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 9.0 hours before the alert went out and 246 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Rapid City, SD at 12:00Z on 2023-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 12:00Z on 2023-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2290 m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
-67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

408 
WWUS45 KCYS 032057
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
257 PM MDT Mon Apr 3 2023

WYZ101-041100-
/O.NEW.KCYS.BZ.W.0003.230404T0000Z-230405T0000Z/
/O.NEW.KCYS.WS.W.0012.230405T0000Z-230405T1200Z/
/O.EXT.KCYS.WS.W.0011.000000T0000Z-230404T0000Z/
Converse County Lower Elevations-
Including the cities of Douglas, Glenrock, Bill, and Deer Creek
257 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT
TUESDAY...
...WINTER STORM WARNING IN EFFECT FROM 6 PM TUESDAY TO 6 AM MDT
WEDNESDAY...

* WHAT...A Blizzard Warning is in effect from 6pm this evening 
  through 6pm Tuesday. However, Winter Storm Warnings will remain 
  in effect through 6am Wednesday. Total Snow Accumulation will 
  range from 13 to 20 inches for the entire storm event. The 
  heaviest snowfall is expected to occur tonight and Tuesday with 
  wind gusts up of 40 to 50 mph at times. The snow will begin to 
  taper off Tuesday night and Wednesday, but the gusty winds will 
  continue through Wednesday creating blowing snow and reduced 
  visibility. 
 
* WHERE...Converse County Lower Elevations.

* WHEN...Blizzard Warning, from 6 PM this evening to 6 PM MDT
  Tuesday. For Winter Storm Warnings will remain in effect until
  6am Wednesday.

* IMPACTS...Travel could be very difficult to impossible. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-095-WYZ102-041100-
/O.NEW.KCYS.BZ.W.0003.230404T0000Z-230405T0000Z/
/O.NEW.KCYS.WS.W.0012.230405T0000Z-230406T0000Z/
/O.EXT.KCYS.WS.W.0011.000000T0000Z-230404T0000Z/
Dawes County-Northern Sioux County-Niobrara County-
Including the cities of Chadron, Chadron St Park, Harrison, Lusk,
and Redbird
257 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM MDT
TUESDAY...
...WINTER STORM WARNING IN EFFECT FROM 6 PM TUESDAY TO 6 PM MDT
WEDNESDAY...

* WHAT...A Blizzard Warning is in effect from 6pm today until 6pm
  Tuesday. However, Winter Storm Warnings will remain in effect
  through 6pm Wednesday. Total Snow Accumulation will range from 1
  to 2 feet for the entire storm event. The heaviest snowfall is 
  expected to occur tonight and Tuesday with wind gusts up of 40 
  to 50 mph at times. The snow will begin to taper off Tuesday 
  night and Wednesday, but the gusty winds will continue through 
  Wednesday creating blowing snow and reduced visibility.

* WHERE...In Nebraska, Dawes County and Northern Sioux County. 
  In Wyoming, Niobrara County.

* WHEN...Blizzard Warning, from 6 PM this evening to 6 PM MDT
  Tuesday. For Winter Storm Warnings will remain in effect until
  6pm Wednesday.

* IMPACTS...Travel could be very difficult to impossible. 
  Widespread blowing snow could significantly reduce visibility. 
  The hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ104-105-109-110-041100-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-North Snowy Range Foothills-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Arlington, and Elk Mountain
257 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
TUESDAY...

* WHAT...Heavy snow expected. Additional snow accumulations of 6 
  to 12 inches. Winds gusting as high as 50 mph.

* WHERE...Central and northern Carbon County, including Rawlins, 
  Arlington, and the Shirley Basin.

* WHEN...From Now to 6 PM MDT Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Patchy 
  blowing and drifting snow could significantly reduce 
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ103-041100-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
North Laramie Range-
Including the cities of Garrett and Esterbrook
257 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3 
  feet. Winds gusting as high as 50 mph.

* WHERE...North Laramie Range.

* WHEN...From now to 6 AM MDT Wednesday.

* IMPACTS...Outdoor recreation could become life threatening to 
  those caught unprepared for severe winter conditions. Hikers 
  and snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ106-107-116-041100-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
Central Laramie Range and Southwest Platte County-
East Platte County-South Laramie Range-
Including the cities of Bordeaux, Wheatland, Guernsey, Buford, 
Pumpkin Vine, and Vedauwoo
257 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 12 to 24 inches expected in Converse and 
  Platte counties with locally higher amounts possible. Lower 
  amounts of 6 to 12 inches expected in the South Laramie Range. 
  Winds could gust as high as 50 mph, producing near-blizzard 
  conditions at times.

* WHERE...Converse and Platte counties. Central and Southern 
  Laramie Range, including Interstate 80 between Cheyenne and 
  Laramie.

* WHEN...From now to 6 AM MDT Wednesday.

* IMPACTS...Travel could be very difficult to impossible. Areas 
  of blowing and drifting snow could significantly reduce 
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ003-096-WYZ108-041100-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230406T0000Z/
Box Butte County-Southern Sioux County-Goshen County-
Including the cities of Alliance, Hemingford, Agate, 
and Torrington
257 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Heavy snow and near-blizzard conditions expected. Total
  snow accumulations of 12 to 24 inches in Niobrara, Dawes,
  northern Sioux, and northern Goshen counties. Higher snow totals
  expected along and near the Pine Ridge. Lower amounts of 6 to 12
  inches are expected in Box Butte, southern Sioux, and southern
  Goshen counties. Winds gusting as high as 50 to 55 mph.

* WHERE...In Nebraska, Dawes, Box Butte, and Sioux County. In 
  Wyoming, Goshen and Niobrara County. This includes Chadron, 
  Lusk, Harrison, Alliance, and Torrington.

* WHEN...From now to 6 PM MDT Wednesday.

* IMPACTS...Travel could be very difficult to impossible. 
  Blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ112-114-041100-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0500Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
257 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MDT
TUESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 1 to 2 feet expected. Winds gusting as high 
  as 45 mph.

* WHERE...Sierra Madre Range and Snowy Range.

* WHEN...From Now to 11 PM MDT Tuesday.

* IMPACTS...Outdoor recreation could become life threatening to 
  those caught unprepared for severe winter conditions. Hikers 
  and snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111-113-041100-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Southwest Carbon County-Upper North Platte River Basin-
Including the cities of Baggs, Saratoga, and Encampment
257 PM MDT Mon Apr 3 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches. Winds gusting as high as 45 mph.

* WHERE...Southwest Carbon County and Upper North Platte River 
  Basin including Baggs and Saratoga.

* WHEN...From Now to 6 PM MDT Tuesday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ115-117>119-041100-
/O.CON.KCYS.WW.Y.0024.230404T0000Z-230405T0000Z/
Laramie Valley-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
Including the cities of Laramie, Bosler, Whitaker, Federal, 
Horse Creek, Cheyenne, and Pine Bluffs
257 PM MDT Mon Apr 3 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MDT TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 6 
  inches. Winds gusting as high as 40 mph.

* WHERE...Laramie Valley.

* WHEN...From 6 PM this evening to 6 PM MDT Tuesday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ019>021-041100-
/O.CON.KCYS.WW.Y.0024.230404T0000Z-230406T0000Z/
Scotts Bluff County-Banner County-Morrill County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, and Redington
257 PM MDT Mon Apr 3 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MDT WEDNESDAY...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of 3 to 6 inches expected with higher amounts in the Wildcat
  Hills. Winds gusting as high as 50 mph.

* WHERE...Scotts Bluff County and Banner County, including the 
  city of Scottsbluff.

* WHEN...From 6 PM this evening to 6 PM MDT Wednesday.

* IMPACTS...Travel could be very difficult. Patchy blowing snow 
  could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
6 follow-up statements
198 
WWUS45 KCYS 040105
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
705 PM MDT Mon Apr 3 2023

WYZ101-041200-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230405T1200Z/
Converse County Lower Elevations-
Including the cities of Douglas, Glenrock, Bill, and Deer Creek
705 PM MDT Mon Apr 3 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT TUESDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM TUESDAY TO
6 AM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in effect from 6pm this evening
  through 6pm Tuesday. Winter Storm Warnings will remain in 
  effect through 6am Wednesday. Total Snow Accumulation will range
  from 13 to 20 inches for the entire storm event. The heaviest 
  snowfall is expected to occur tonight and Tuesday with wind 
  gusts up of 40 to 50 mph at times. The snow will begin to taper 
  off Tuesday night and Wednesday, but the gusty winds will 
  continue through Wednesday creating blowing snow and reduced 
  visibility.

* WHERE...Converse County Lower Elevations.

* WHEN...Blizzard Warning, from 6 PM this evening to 6 PM MDT
  Tuesday. Winter Storm Warnings will remain in effect until 6am 
  Wednesday.

* IMPACTS...Travel will be very difficult to impossible.
  Widespread blowing snow will significantly reduce visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-095-WYZ102-041200-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230406T0000Z/
Dawes County-Northern Sioux County-Niobrara County-
Including the cities of Chadron, Chadron St Park, Harrison, Lusk,
and Redbird
705 PM MDT Mon Apr 3 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT TUESDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM TUESDAY TO
6 PM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in effect from 6pm today until 6pm
  Tuesday. Winter Storm Warnings will remain in effect through 
  6pm Wednesday. Total Snow Accumulation will range from 1 to 2 
  feet for the entire storm event. The heaviest snowfall is 
  expected to occur tonight and Tuesday with wind gusts up of 40 
  to 50 mph at times. The snow will begin to taper off Tuesday 
  night and Wednesday, but the gusty winds will continue through 
  Wednesday creating blowing snow and reduced visibility.

* WHERE...In Nebraska, Dawes County and Northern Sioux County. 
  In Wyoming, Niobrara County.

* WHEN...Blizzard Warning, from 6 PM this evening to 6 PM MDT
  Tuesday. Winter Storm Warnings will remain in effect until 6pm 
  Wednesday.

* IMPACTS...Travel will be very difficult to impossible.
  Widespread blowing snow will significantly reduce visibility. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ104-105-109-110-041200-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Carbon County-North Snowy Range Foothills-
Including the cities of Seminoe Dam, Medicine Bow, Shirley Basin,
Rawlins, Arlington, and Elk Mountain
705 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
TUESDAY...

* WHAT...Heavy snow expected. Additional snow accumulations of 6 
  to 12 inches. Winds gusting as high as 50 mph.

* WHERE...Central and northern Carbon County, including Rawlins, 
  Arlington, and the Shirley Basin.

* WHEN...From Now to 6 PM MDT Tuesday.

* IMPACTS...Travel will be very difficult to impossible. Patchy
  blowing and drifting snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ103-041200-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
North Laramie Range-
Including the cities of Garrett and Esterbrook
705 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3 
  feet. Winds gusting as high as 50 mph.

* WHERE...North Laramie Range.

* WHEN...From now to 6 AM MDT Wednesday.

* IMPACTS...Outdoor recreation will become life threatening to 
  those caught unprepared for severe winter conditions. Hikers and
  snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ106-107-116-041200-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
Central Laramie Range and Southwest Platte County-
East Platte County-South Laramie Range-
Including the cities of Bordeaux, Wheatland, Guernsey, Buford, 
Pumpkin Vine, and Vedauwoo
705 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 12 to 24 inches expected in Converse and 
  Platte counties with locally higher amounts possible. Lower 
  amounts of 6 to 12 inches expected in the South Laramie Range. 
  Winds could gust as high as 50 mph, producing near-blizzard 
  conditions at times.

* WHERE...Converse and Platte counties. Central and Southern 
  Laramie Range, including Interstate 80 between Cheyenne and 
  Laramie.

* WHEN...From now to 6 AM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Areas of
  blowing and drifting snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ003-096-WYZ108-041200-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230406T0000Z/
Box Butte County-Southern Sioux County-Goshen County-
Including the cities of Alliance, Hemingford, Agate, 
and Torrington
705 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Heavy snow and near-blizzard conditions expected. Total 
  snow accumulations of 12 to 24 inches in Niobrara, Dawes, 
  northern Sioux, and northern Goshen counties. Higher snow 
  totals expected along and near the Pine Ridge. Lower amounts 
  of 6 to 12 inches are expected in Box Butte, southern Sioux, 
  and southern Goshen counties. Winds gusting as high as 50 to 
  55 mph.

* WHERE...In Nebraska, Dawes, Box Butte, and Sioux County. In 
  Wyoming, Goshen and Niobrara County. This includes Chadron, 
  Lusk, Harrison, Alliance, and Torrington.

* WHEN...From now to 6 PM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Blowing
  snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ112-114-041200-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0500Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
705 PM MDT Mon Apr 3 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MDT
TUESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 1 to 2 feet expected. Winds gusting as high 
  as 45 mph.

* WHERE...Sierra Madre Range and Snowy Range.

* WHEN...From Now to 11 PM MDT Tuesday.

* IMPACTS...Outdoor recreation will become life threatening to 
  those caught unprepared for severe winter conditions. Hikers and
  snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111-113-041200-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Southwest Carbon County-Upper North Platte River Basin-
Including the cities of Baggs, Saratoga, and Encampment
705 PM MDT Mon Apr 3 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches. Winds gusting as high as 45 mph.

* WHERE...Southwest Carbon County and Upper North Platte River 
  Basin including Baggs and Saratoga.

* WHEN...From Now to 6 PM MDT Tuesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ115-117>119-041200-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Laramie Valley-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
Including the cities of Laramie, Bosler, Whitaker, Federal, 
Horse Creek, Cheyenne, and Pine Bluffs
705 PM MDT Mon Apr 3 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 6 
  inches. Winds gusting as high as 40 mph.

* WHERE...Laramie Valley.

* WHEN...From 6 PM this evening to 6 PM MDT Tuesday.

* IMPACTS...Travel will be impacted. Blowing snow will
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ019>021-041200-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Scotts Bluff County-Banner County-Morrill County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, and Redington
705 PM MDT Mon Apr 3 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 3 to 6 inches expected with higher amounts in 
  the Wildcat Hills. Winds gusting as high as 50 mph.

* WHERE...Scotts Bluff County and Banner County, including the 
  city of Scottsbluff.

* WHEN...From 6 PM this evening to 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
316 
WWUS45 KCYS 040623
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
1223 AM MDT Tue Apr 4 2023

WYZ104-109-110-041430-
/O.UPG.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
/O.EXA.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
Ferris/Seminoe/Shirley Mountains-Central Carbon County-
North Snowy Range Foothills-
Including the cities of Seminoe Dam, Rawlins, Arlington, 
and Elk Mountain
1223 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations 5 to
  10 inches. Winds gusting as high as 60 mph.

* WHERE...Ferris/Seminoe/Shirley Mountains, Central Carbon 
  County and North Snowy Range Foothills.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel will be very difficult to impossible.
  Widespread blowing and drifting snow will significantly reduce
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ101-041430-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230405T1200Z/
Converse County Lower Elevations-
Including the cities of Douglas, Glenrock, Bill, and Deer Creek
1223 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 AM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in effect from 6pm this evening 
  through 6pm Tuesday. Winter Storm Warnings will remain in 
  effect through 6am Wednesday. Total Snow Accumulation will 
  range from 13 to 20 inches for the entire storm event. The 
  heaviest snowfall is expected to occur tonight and Tuesday 
  with wind gusts up of 40 to 50 mph at times. The snow will 
  begin to taper off Tuesday night and Wednesday, but the gusty 
  winds will continue through Wednesday creating blowing snow 
  and reduced visibility.

* WHERE...Converse County Lower Elevations.

* WHEN...Blizzard Warning, from 6 PM this evening to 6 PM MDT 
  Tuesday. Winter Storm Warnings will remain in effect until 6am 
  Wednesday.

* IMPACTS...Travel will be very difficult to impossible. 
  Widespread blowing snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-095-WYZ102-041430-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230406T0000Z/
Dawes County-Northern Sioux County-Niobrara County-
Including the cities of Chadron, Chadron St Park, Harrison, Lusk,
and Redbird
1223 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in effect from 6pm today until 
  6pm Tuesday. Winter Storm Warnings will remain in effect 
  through 6pm Wednesday. Total Snow Accumulation will range from 
  1 to 2 feet for the entire storm event. The heaviest snowfall 
  is expected to occur tonight and Tuesday with wind gusts up of 
  40 to 50 mph at times. The snow will begin to taper off 
  Tuesday night and Wednesday, but the gusty winds will continue 
  through Wednesday creating blowing snow and reduced visibility.

* WHERE...In Nebraska, Dawes County and Northern Sioux County. 
  In Wyoming, Niobrara County.

* WHEN...Blizzard Warning, from 6 PM this evening to 6 PM MDT 
  Tuesday. Winter Storm Warnings will remain in effect until 6pm 
  Wednesday.

* IMPACTS...Travel will be very difficult to impossible.
  Widespread blowing snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ105-041430-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
Shirley Basin-
Including the cities of Medicine Bow and Shirley Basin
1223 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Heavy snow expected. Additional snow accumulations of 6 
  to 12 inches. Winds gusting as high as 50 mph.

* WHERE...Central and northern Carbon County, including Rawlins, 
  Arlington, and the Shirley Basin.

* WHEN...From Now to 6 PM MDT Tuesday.

* IMPACTS...Travel will be very difficult to impossible. Patchy 
  blowing and drifting snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ103-041430-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
North Laramie Range-
Including the cities of Garrett and Esterbrook
1223 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3 
  feet. Winds gusting as high as 50 mph.

* WHERE...North Laramie Range.

* WHEN...From now to 6 AM MDT Wednesday.

* IMPACTS...Outdoor recreation will become life threatening to
  those caught unprepared for severe winter conditions. Hikers and
  snowmobilers may easily become disoriented. Frostbite and
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ106-107-116-041430-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
Central Laramie Range and Southwest Platte County-
East Platte County-South Laramie Range-
Including the cities of Bordeaux, Wheatland, Guernsey, Buford, 
Pumpkin Vine, and Vedauwoo
1223 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 12 to 24 inches expected in Converse and 
  Platte counties with locally higher amounts possible. Lower 
  amounts of 6 to 12 inches expected in the South Laramie Range. 
  Winds could gust as high as 50 mph, producing near-blizzard 
  conditions at times.

* WHERE...Converse and Platte counties. Central and Southern 
  Laramie Range, including Interstate 80 between Cheyenne and 
  Laramie.

* WHEN...From now to 6 AM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Areas of
  blowing and drifting snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ003-096-WYZ108-041430-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230406T0000Z/
Box Butte County-Southern Sioux County-Goshen County-
Including the cities of Alliance, Hemingford, Agate, 
and Torrington
1223 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Heavy snow and near-blizzard conditions expected. Total 
  snow accumulations of 12 to 24 inches in Niobrara, Dawes, 
  northern Sioux, and northern Goshen counties. Higher snow 
  totals expected along and near the Pine Ridge. Lower amounts 
  of 6 to 12 inches are expected in Box Butte, southern Sioux, 
  and southern Goshen counties. Winds gusting as high as 50 to 
  55 mph.

* WHERE...In Nebraska, Dawes, Box Butte, and Sioux County. In 
  Wyoming, Goshen and Niobrara County. This includes Chadron, 
  Lusk, Harrison, Alliance, and Torrington.

* WHEN...From now to 6 PM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Blowing
  snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ112-114-041430-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0500Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
1223 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MDT THIS
EVENING...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 1 to 2 feet expected. Winds gusting as high 
  as 45 mph.

* WHERE...Sierra Madre Range and Snowy Range.

* WHEN...From Now to 11 PM MDT Tuesday.

* IMPACTS...Outdoor recreation will become life threatening to
  those caught unprepared for severe winter conditions. Hikers and
  snowmobilers may easily become disoriented. Frostbite and
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111-113-041430-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Southwest Carbon County-Upper North Platte River Basin-
Including the cities of Baggs, Saratoga, and Encampment
1223 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow expected. Total snow accumulations of 3 to 6 
  inches. Winds gusting as high as 45 mph.

* WHERE...Southwest Carbon County and Upper North Platte River 
  Basin including Baggs and Saratoga.

* WHEN...From Now to 6 PM MDT Tuesday.

* IMPACTS...Travel will be impacted. Blowing snow will
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ115-117>119-041430-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Laramie Valley-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
Including the cities of Laramie, Bosler, Whitaker, Federal, 
Horse Creek, Cheyenne, and Pine Bluffs
1223 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow expected. Total snow accumulations of 2 to 6 inches.
  Locally higher amounts expected in northern and western Laramie
  county. Winds gusting as high as 40 mph.

* WHERE...Laramie County including the city of Cheyenne. Laramie
  Valley including the city of Laramie.

* WHEN...From 6 PM this evening to 6 PM MDT Tuesday.

* IMPACTS...Travel will be impacted. Blowing snow will
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ019>021-041430-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Scotts Bluff County-Banner County-Morrill County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, and Redington
1223 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of 3 to 6 inches expected with higher amounts possible in the 
  Wildcat Hills. Winds gusting as high as 50 mph.

* WHERE...Scotts Bluff County and Banner County, including the 
  city of Scottsbluff.

* WHEN...From 6 PM this evening to 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
888 
WWUS45 KCYS 041000
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
400 AM MDT Tue Apr 4 2023

WYZ117-050000-
/O.UPG.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
/O.EXA.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
South Laramie Range Foothills-
Including the cities of Whitaker, Federal, and Horse Creek
400 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches. Winds gusting as high as 40 mph.

* WHERE...South Laramie Range Foothills.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel will be impacted. Blowing snow will
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ101-050000-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230405T1200Z/
Converse County Lower Elevations-
Including the cities of Douglas, Glenrock, Bill, and Deer Creek
400 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 AM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in until 6pm Tuesday. Winter Storm
  Warnings will remain in effect through 6am Wednesday. Additional
  accumulations of 4 to 8 inches expected. Wind gusts of 40 to 50
  MPH. The snow will begin to taper off Tuesday night and 
  Wednesday, but the gusty winds will continue through Wednesday 
  creating blowing snow and reduced visibility.

* WHERE...Converse County Lower Elevations.

* WHEN...Blizzard Warning, until 6 PM MDT Tuesday. Winter Storm
  Warnings will remain in effect until 6 AM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible.
  Widespread blowing snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-095-WYZ102-050000-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230406T0000Z/
Dawes County-Northern Sioux County-Niobrara County-
Including the cities of Chadron, Chadron St Park, Harrison, Lusk,
and Redbird
400 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in effect until 6 PM Tuesday.
  Winter Storm Warnings will remain in effect through 6pm
  Wednesday. Additional snow accumulations of 6 to 12 inches
  expected. Wind gusts of 40 to 50 MPH. The snow will begin to 
  taper off Tuesday night and Wednesday, but the gusty winds will 
  continue through Wednesday creating blowing snow and reduced 
  visibility.

* WHERE...In Nebraska, Dawes County and Northern Sioux County. 
  In Wyoming, Niobrara County.

* WHEN...Blizzard Warning, until 6 PM MDT Tuesday. Winter Storm 
  Warnings will remain in effect until 6pm Wednesday.

* IMPACTS...Travel will be very difficult to impossible. 
  Widespread blowing snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ104-109-110-050000-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
Ferris/Seminoe/Shirley Mountains-Central Carbon County-
North Snowy Range Foothills-
Including the cities of Seminoe Dam, Rawlins, Arlington, 
and Elk Mountain
400 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations 4 to 8 
  inches. Winds gusting as high as 60 mph.

* WHERE...Central and northern Carbon county, including Rawlins
  and Elk Mountain.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel will be very difficult to impossible.
  Widespread blowing and drifting snow will significantly reduce
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ105-050000-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
Shirley Basin-
Including the cities of Medicine Bow and Shirley Basin
400 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Heavy snow expected. Additional snow accumulations of 1
  to 3 inches. Winds gusting as high as 50 mph.

* WHERE...Shirley Basin.

* WHEN...Until 6 PM MDT Tuesday.

* IMPACTS...Travel will be very difficult to impossible. Patchy
  blowing and drifting snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ103-050000-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
North Laramie Range-
Including the cities of Garrett and Esterbrook
400 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Additional snow accumulations of 6
  to 12 inches. Winds gusting as high as 50 mph.

* WHERE...North Laramie Range.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Outdoor recreation will become life threatening to
  those caught unprepared for severe winter conditions. Hikers and
  snowmobilers may easily become disoriented. Frostbite and
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ106-107-116-050000-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
Central Laramie Range and Southwest Platte County-
East Platte County-South Laramie Range-
Including the cities of Bordeaux, Wheatland, Guernsey, Buford, 
Pumpkin Vine, and Vedauwoo
400 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Additional snow
  accumulations of 3 to 7 inches. Winds could gust as high as 50 
  mph, producing near- blizzard conditions at times.

* WHERE...Platte county including the city of Wheatland. The 
  Central and Southern Laramie Range, including Interstate 80 
  between Cheyenne and Laramie.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Areas of
  blowing and drifting snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ003-096-WYZ108-050000-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230406T0000Z/
Box Butte County-Southern Sioux County-Goshen County-
Including the cities of Alliance, Hemingford, Agate, 
and Torrington
400 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Heavy snow and near-blizzard conditions expected.
  Additional accumulations of 3 to 6 inches. Winds gusting as 
  high as 50 to 55 mph.

* WHERE...In Nebraska, Dawes, Box Butte, and Sioux County. In 
  Wyoming, Goshen and Niobrara County. This includes Chadron, 
  Lusk, Harrison, Alliance, and Torrington.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Blowing
  snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ112-114-050000-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0500Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
400 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MDT THIS
EVENING...

* WHAT...Heavy snow and blowing snow expected. Additional snow 
  accumulations of 4 to 8 inches. Winds gusting as high as 45 
  mph.

* WHERE...Sierra Madre Range and Snowy Range.

* WHEN...From Now to 11 PM MDT Tuesday.

* IMPACTS...Outdoor recreation will become life threatening to
  those caught unprepared for severe winter conditions. Hikers and
  snowmobilers may easily become disoriented. Frostbite and
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111-113-050000-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Southwest Carbon County-Upper North Platte River Basin-
Including the cities of Baggs, Saratoga, and Encampment
400 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow expected. Additional snow accumulations of 1 to 3 
  inches. Winds gusting as high as 45 mph.

* WHERE...Southwest Carbon County and Upper North Platte River 
  Basin including Baggs and Saratoga.

* WHEN...Until 6 PM MDT Tuesday.

* IMPACTS...Travel will be impacted. Blowing snow will
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ115-118-119-050000-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Laramie Valley-Central Laramie County-East Laramie County-
Including the cities of Laramie, Bosler, Cheyenne, 
and Pine Bluffs
400 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow expected. Additional snow accumulations of 1 to 3 
  inches. Locally higher amounts expected in northern and western 
  Laramie county. Winds gusting as high as 40 mph.

* WHERE...Laramie County including the city of Cheyenne. Laramie 
  Valley including the city of Laramie.

* WHEN...Until 6 PM MDT Tuesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

* ADDITIONAL DETAILS...Heavier snowfall is expected in northern
  and western portions of Laramie county, where a total of 6 to 10
  inches is expected. Significant drifting in these areas could
  lead to very hazardous travel conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ019>021-050000-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Scotts Bluff County-Banner County-Morrill County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, and Redington
400 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 3 to 6 inches expected with higher amounts 
  possible in the Wildcat Hills. Winds gusting as high as 50 mph.

* WHERE...Scotts Bluff County and Banner County, including the 
  city of Scottsbluff.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
203 
WWUS45 KCYS 041418
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
818 AM MDT Tue Apr 4 2023

WYZ101-042300-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230405T1200Z/
Converse County Lower Elevations-
Including the cities of Douglas, Glenrock, Bill, and Deer Creek
818 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 AM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in until 6pm Tuesday. Winter 
  Storm Warnings will remain in effect through 6am Wednesday. 
  Additional accumulations of 4 to 8 inches expected. Wind gusts 
  of 40 to 50 MPH. The snow will begin to taper off Tuesday 
  night and Wednesday, but the gusty winds will continue through 
  Wednesday creating blowing snow and reduced visibility.

* WHERE...Converse County Lower Elevations.

* WHEN...Blizzard Warning, until 6 PM MDT Tuesday. Winter Storm 
  Warnings will remain in effect until 6 AM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. 
  Widespread blowing snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-095-WYZ102-042300-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230406T0000Z/
Dawes County-Northern Sioux County-Niobrara County-
Including the cities of Chadron, Chadron St Park, Harrison, Lusk,
and Redbird
818 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in effect until 6 PM Tuesday. 
  Winter Storm Warnings will remain in effect through 6pm 
  Wednesday. Additional snow accumulations of 6 to 12 inches 
  expected. Wind gusts of 40 to 50 MPH. The snow will begin to 
  taper off Tuesday night and Wednesday, but the gusty winds 
  will continue through Wednesday creating blowing snow and 
  reduced visibility.

* WHERE...In Nebraska, Dawes County and Northern Sioux County. 
  In Wyoming, Niobrara County.

* WHEN...Blizzard Warning, until 6 PM MDT Tuesday. Winter Storm 
  Warnings will remain in effect until 6pm Wednesday.

* IMPACTS...Travel will be very difficult to impossible. 
  Widespread blowing snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ104-109-110-042300-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
Ferris/Seminoe/Shirley Mountains-Central Carbon County-
North Snowy Range Foothills-
Including the cities of Seminoe Dam, Rawlins, Arlington, 
and Elk Mountain
818 AM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations 4 to 
  8 inches. Winds gusting as high as 60 mph.

* WHERE...Central and northern Carbon county, including Rawlins 
  and Elk Mountain.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel will be very difficult to impossible. 
  Widespread blowing and drifting snow will significantly reduce 
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ105-042300-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
Shirley Basin-
Including the cities of Medicine Bow and Shirley Basin
818 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Heavy snow expected. Additional snow accumulations of 1 
  to 3 inches. Winds gusting as high as 50 mph.

* WHERE...Shirley Basin.

* WHEN...Until 6 PM MDT Tuesday.

* IMPACTS...Travel will be very difficult to impossible. Patchy 
  blowing and drifting snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ103-042300-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
North Laramie Range-
Including the cities of Garrett and Esterbrook
818 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Additional snow accumulations of 6 
  to 12 inches. Winds gusting as high as 50 mph.

* WHERE...North Laramie Range.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Outdoor recreation will become life threatening to 
  those caught unprepared for severe winter conditions. Hikers 
  and snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ106-107-116-042300-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
Central Laramie Range and Southwest Platte County-
East Platte County-South Laramie Range-
Including the cities of Bordeaux, Wheatland, Guernsey, Buford, 
Pumpkin Vine, and Vedauwoo
818 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Additional snow 
  accumulations of 3 to 7 inches. Winds could gust as high as 50 
  mph, producing near- blizzard conditions at times.

* WHERE...Platte county including the city of Wheatland. The 
  Central and Southern Laramie Range, including Interstate 80 
  between Cheyenne and Laramie.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Areas 
  of blowing and drifting snow will significantly reduce 
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ003-096-WYZ108-042300-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230406T0000Z/
Box Butte County-Southern Sioux County-Goshen County-
Including the cities of Alliance, Hemingford, Agate, 
and Torrington
818 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Heavy snow and near-blizzard conditions expected. 
  Additional accumulations of 3 to 6 inches. Winds gusting as 
  high as 50 to 55 mph.

* WHERE...In Nebraska, Dawes, Box Butte, and Sioux County. In 
  Wyoming, Goshen and Niobrara County. This includes Chadron, 
  Lusk, Harrison, Alliance, and Torrington.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Blowing 
  snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ117-042300-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
South Laramie Range Foothills-
Including the cities of Whitaker, Federal, and Horse Creek
818 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches. Winds gusting as high as 40 mph.

* WHERE...South Laramie Range Foothills.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ112-114-042300-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0500Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
818 AM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MDT THIS
EVENING...

* WHAT...Heavy snow and blowing snow expected. Additional snow 
  accumulations of 4 to 8 inches. Winds gusting as high as 45 
  mph.

* WHERE...Sierra Madre Range and Snowy Range.

* WHEN...From Now to 11 PM MDT Tuesday.

* IMPACTS...Outdoor recreation will become life threatening to 
  those caught unprepared for severe winter conditions. Hikers 
  and snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ054-055-042300-
/O.EXA.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Kimball County-Cheyenne County-
Including the cities of Kimball, Sidney, and Brownson
818 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT WEDNESDAY...

* WHAT...Snow. Additional snow accumulations of up to two inches.
  Winds gusting as high as 45 mph will reduce the visibility due
  to blowing snow potential. 

* WHERE...Kimball County and Cheyenne County.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111-113-042300-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Southwest Carbon County-Upper North Platte River Basin-
Including the cities of Baggs, Saratoga, and Encampment
818 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow expected. Additional snow accumulations of 1 to 3 
  inches. Winds gusting as high as 45 mph.

* WHERE...Southwest Carbon County and Upper North Platte River 
  Basin including Baggs and Saratoga.

* WHEN...Until 6 PM MDT Tuesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ115-118-119-042300-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Laramie Valley-Central Laramie County-East Laramie County-
Including the cities of Laramie, Bosler, Cheyenne, 
and Pine Bluffs
818 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow expected. Additional snow accumulations of 1 to 3 
  inches. Locally higher amounts expected in northern and 
  western Laramie county. Winds gusting as high as 40 mph.

* WHERE...Laramie County including the city of Cheyenne. Laramie 
  Valley including the city of Laramie.

* WHEN...Until 6 PM MDT Tuesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ019>021-042300-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Scotts Bluff County-Banner County-Morrill County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, and Redington
818 AM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of 3 to 6 inches expected with higher amounts 
  possible in the Wildcat Hills. Winds gusting as high as 50 mph.

* WHERE...Scotts Bluff County and Banner County, including the 
  city of Scottsbluff.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
186 
WWUS45 KCYS 042053
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
253 PM MDT Tue Apr 4 2023

WYZ101-050500-
/O.CAN.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CAN.KCYS.WS.W.0012.230405T0000Z-230405T1200Z/
/O.EXB.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
Converse County Lower Elevations-
Including the cities of Douglas, Glenrock, Bill, and Deer Creek
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT WEDNESDAY...
...BLIZZARD WARNING IS CANCELLED...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of up to two inches.
  Winds gusting as high as 30 mph.

* WHERE...Converse County Lower Elevations.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ102-050500-
/O.CAN.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CAN.KCYS.WS.W.0012.230405T0000Z-230406T0000Z/
/O.EXB.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
Niobrara County-
Including the cities of Lusk and Redbird
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT WEDNESDAY...
...BLIZZARD WARNING IS CANCELLED...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.
  Winds gusting as high as 30 mph.

* WHERE...Niobrara County.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ103-050500-
/O.CAN.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
/O.EXB.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
North Laramie Range-
Including the cities of Garrett and Esterbrook
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches. 
  Winds gusting as high as 35 mph.

* WHERE...North Laramie Range.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ106-107-116-050500-
/O.CAN.KCYS.WS.W.0011.000000T0000Z-230405T1200Z/
/O.EXB.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
Central Laramie Range and Southwest Platte County-
East Platte County-South Laramie Range-
Including the cities of Bordeaux, Wheatland, Guernsey, Buford, 
Pumpkin Vine, and Vedauwoo
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of up to two inches.
  Winds gusting as high as 30 mph.

* WHERE...Central Laramie Range and Southwest Platte County, 
  East Platte County and South Laramie Range.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ108-050500-
/O.CAN.KCYS.WS.W.0011.000000T0000Z-230406T0000Z/
/O.EXB.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
Goshen County-
Including the city of Torrington
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of up to one inch.
  Winds gusting as high as 20 to 30 mph.

* WHERE...Goshen County.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ117-050500-
/O.CAN.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
/O.EXB.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
South Laramie Range Foothills-
Including the cities of Whitaker, Federal, and Horse Creek
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT WEDNESDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of up to one inch.

* WHERE...South Laramie Range Foothills.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ002-095-050500-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230406T0000Z/
Dawes County-Northern Sioux County-
Including the cities of Chadron, Chadron St Park, and Harrison
253 PM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT WEDNESDAY...

* WHAT...A Blizzard Warning is in effect until 6 PM. Winter Storm
  Warnings will remain in effect through 6pm Wednesday. Additional
  snow accumulations of 2 to 4 inches expected with the higher
  amounts in the Pine Ridge. Wind gusts of 20 to 30 MPH. The snow
  will begin to taper off Tonight and Wednesday, but the gusty 
  winds will continue through Wednesday creating blowing snow and 
  reduced visibility.

* WHERE...In Nebraska, Dawes County and Northern Sioux County. 
  In Wyoming, Niobrara County.

* WHEN...Blizzard Warning, until 6 PM MDT Today. Winter Storm 
  Warnings will remain in effect until 6pm Wednesday.

* IMPACTS...Travel will be very difficult to impossible. 
  Widespread blowing snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ104-109-110-050000-
/O.CON.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
Ferris/Seminoe/Shirley Mountains-Central Carbon County-
North Snowy Range Foothills-
Including the cities of Seminoe Dam, Rawlins, Arlington, 
and Elk Mountain
253 PM MDT Tue Apr 4 2023

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Grounds Blizzard conditions. Additional snow
  accumulations up to 1 inch. Winds gusting as high as 35 mph.

* WHERE...Central and northern Carbon county, including Rawlins 
  and Elk Mountain.

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel will be very difficult to impossible. 
  Widespread blowing and drifting snow will significantly reduce 
  visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ105-050000-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
Shirley Basin-
Including the cities of Medicine Bow and Shirley Basin
253 PM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow expected. Additional snow accumulations up 1 inch. 
  Winds gusting as high as 30 to 35 mph.

* WHERE...Shirley Basin.

* WHEN...Until 6 PM MDT Tuesday.

* IMPACTS...Travel will be very difficult to impossible. Patchy 
  blowing and drifting snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ003-096-050500-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230406T0000Z/
Box Butte County-Southern Sioux County-
Including the cities of Alliance, Hemingford, and Agate
253 PM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Heavy snow expected. Additional accumulations of 2 to 4
  inches. Winds gusting as high as 20 to 30 mph.

* WHERE...In Nebraska, Dawes, Box Butte, and Sioux County. In 
  Wyoming, Goshen and Niobrara County. This includes Chadron, 
  Lusk, Harrison, Alliance, and Torrington.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Blowing 
  snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ112-114-050500-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0500Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
253 PM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MDT THIS
EVENING...

* WHAT...Heavy snow and blowing snow expected. Additional snow
  accumulations of 1 to 3 inches. Winds gusting as high as 20 to
  30 mph.

* WHERE...Sierra Madre Range and Snowy Range.

* WHEN...From Now to 11 PM MDT Tuesday.

* IMPACTS...Outdoor recreation will become life threatening to 
  those caught unprepared for severe winter conditions. Hikers 
  and snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ115-118-119-050500-
/O.EXT.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
Laramie Valley-Central Laramie County-East Laramie County-
Including the cities of Laramie, Bosler, Cheyenne, 
and Pine Bluffs
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Light snow expected. Additional snow accumulations up to
  1 inch. Winds gusting as high as 20 to 30 mph.

* WHERE...Laramie County including the city of Cheyenne. Laramie 
  Valley including the city of Laramie.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ054-055-050500-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Kimball County-Cheyenne County-
Including the cities of Kimball, Sidney, and Brownson
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow. Additional snow accumulations of up to two inches.
  Winds gusting as high as 20 to 30 mph will reduce the 
  visibility due to blowing snow potential.

* WHERE...Kimball County and Cheyenne County.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ111-113-050000-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Southwest Carbon County-Upper North Platte River Basin-
Including the cities of Baggs, Saratoga, and Encampment
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Snow expected. Additional snow accumulations up to 1 inch.
  Winds gusting as high as 20 to 30 mph.

* WHERE...Southwest Carbon County and Upper North Platte River 
  Basin including Baggs and Saratoga.

* WHEN...Until 6 PM MDT.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ019>021-050500-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Scotts Bluff County-Banner County-Morrill County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, and Redington
253 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Additional snow
  accumulations up to 1 inch. Winds gusts of 20 to 30 mph.

* WHERE...Scotts Bluff County and Banner County, including the 
  city of Scottsbluff.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
330 
WWUS45 KCYS 042344
WSWCYS

URGENT - WINTER WEATHER MESSAGE
National Weather Service Cheyenne WY
544 PM MDT Tue Apr 4 2023

NEZ002-095-051200-
/O.EXP.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
/O.CON.KCYS.WS.W.0012.230405T0000Z-230406T0000Z/
Dawes County-Northern Sioux County-
Including the cities of Chadron, Chadron St Park, and Harrison
544 PM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...
...BLIZZARD WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

* WHAT...Winter Storm Warnings will remain in effect through 6 pm
  Wednesday. Additional snow accumulations of 2 to 4 inches
  expected with the higher amounts in the Pine Ridge. Wind gusts
  of 20 to 30 MPH. The snow will begin to taper off tonight and 
  Wednesday, but the gusty winds will continue through Wednesday 
  creating blowing snow and reduced visibility.

* WHERE...In Nebraska, Dawes County and Northern Sioux County. 
  In Wyoming, Niobrara County.

* WHEN...Blizzard Warning, until 6 PM MDT Today. Winter Storm 
  Warnings will remain in effect until 6pm Wednesday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ104-109-110-050045-
/O.EXP.KCYS.BZ.W.0003.000000T0000Z-230405T0000Z/
Ferris/Seminoe/Shirley Mountains-Central Carbon County-
North Snowy Range Foothills-
Including the cities of Seminoe Dam, Rawlins, Arlington, 
and Elk Mountain
544 PM MDT Tue Apr 4 2023

...BLIZZARD WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

The Blizzard Warning expires at 6 PM.

$$

WYZ105-050045-
/O.EXP.KCYS.WS.W.0011.000000T0000Z-230405T0000Z/
Shirley Basin-
Including the cities of Medicine Bow and Shirley Basin
544 PM MDT Tue Apr 4 2023

...WINTER STORM WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

The Winter Storm Warning expires at 6 PM.

$$

WYZ106>108-115-117>119-050045-
/O.CAN.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Laramie Valley-
South Laramie Range Foothills-Central Laramie County-
East Laramie County-
Including the cities of Bordeaux, Wheatland, Guernsey, 
Torrington, Laramie, Bosler, Whitaker, Federal, Horse Creek, 
Cheyenne, and Pine Bluffs
544 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY IS CANCELLED...

The Winter Weather Advisory has been cancelled.

$$

WYZ111-113-050045-
/O.EXP.KCYS.WW.Y.0024.000000T0000Z-230405T0000Z/
Southwest Carbon County-Upper North Platte River Basin-
Including the cities of Baggs, Saratoga, and Encampment
544 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING...

The Winter Weather Advisory expires at 6 PM.

$$

NEZ003-096-051200-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230406T0000Z/
Box Butte County-Southern Sioux County-
Including the cities of Alliance, Hemingford, and Agate
544 PM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow expected. Additional accumulations of 2 to 4 
  inches. Winds gusting as high as 20 to 30 mph.

* WHERE...In Nebraska, Dawes, Box Butte, and Sioux County. In 
  Wyoming, Goshen and Niobrara County. This includes Chadron, 
  Lusk, Harrison, Alliance, and Torrington.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be very difficult to impossible. Blowing 
  snow will significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ112-114-050500-
/O.CON.KCYS.WS.W.0011.000000T0000Z-230405T0500Z/
Sierra Madre Range-Snowy Range-
Including the cities of Centennial and Albany
544 PM MDT Tue Apr 4 2023

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MDT THIS
EVENING...

* WHAT...Heavy snow and blowing snow expected. Additional snow 
  accumulations of 1 to 3 inches. Winds gusting as high as 20 to 
  30 mph.

* WHERE...Sierra Madre Range and Snowy Range.

* WHEN...From Now to 11 PM MDT Tuesday.

* IMPACTS...Outdoor recreation will become life threatening to 
  those caught unprepared for severe winter conditions. Hikers 
  and snowmobilers may easily become disoriented. Frostbite and 
  hypothermia can develop quickly.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ054-055-051200-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Kimball County-Cheyenne County-
Including the cities of Kimball, Sidney, and Brownson
544 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow. Additional snow accumulations of up to two 
  inches. Winds gusting as high as 20 to 30 mph will reduce the 
  visibility due to blowing snow potential.

* WHERE...Kimball County and Cheyenne County.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ103-051200-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
North Laramie Range-
Including the cities of Garrett and Esterbrook
544 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Snow. Additional snow accumulations of 3 to 5 inches. 
  Winds gusting as high as 35 mph.

* WHERE...North Laramie Range.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

NEZ019>021-051200-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230406T0000Z/
Scotts Bluff County-Banner County-Morrill County-
Including the cities of Scottsbluff, Gering, Harrisburg, Angora, 
Bridgeport, Bayard, and Redington
544 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
WEDNESDAY...

* WHAT...Snow and blowing snow expected. Additional snow 
  accumulations up to 1 inch. Winds gusts of 20 to 30 mph.

* WHERE...Scotts Bluff County and Banner County, including the 
  city of Scottsbluff.

* WHEN...Until 6 PM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WYZ101-102-116-051200-
/O.CON.KCYS.WW.Y.0024.000000T0000Z-230405T1200Z/
Converse County Lower Elevations-Niobrara County-
South Laramie Range-
Including the cities of Douglas, Glenrock, Bill, Deer Creek, 
Lusk, Redbird, Buford, Pumpkin Vine, and Vedauwoo
544 PM MDT Tue Apr 4 2023

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM MDT
WEDNESDAY...

* WHAT...Snow. Additional snow accumulations of up to two 
  inches. Winds gusting as high as 30 mph.

* WHERE...Converse County Lower Elevations.

* WHEN...Until 6 AM MDT Wednesday.

* IMPACTS...Travel will be impacted. Blowing snow will 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

Rubin

What forecasters said that day

The local office's own words before this blizzard warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cheyenne, WY wrote its last area forecast discussion before this blizzard warning went out at Apr 3, 11:40 AM MDT, 3 hours 17 minutes earlier.

Area forecast discussion, Apr 3, 11:40 AM MDT, 3 hours 17 minutes before
Area Forecast Discussion...UPDATED
National Weather Service Cheyenne WY
1140 AM MDT Mon Apr 3 2023

.UPDATE...
Issued at 1123 AM MDT Mon Apr 3 2023

Impactful winter storm ramping up late this morning for portions
of east-central WY and the northern Nebraska Panhandle.
Additionally, more snow is occurring across the mountains of SE WY
and west of the Laramie Mountains. Locally significant snowfall
amounts remain on track from Converse, Niobrara, Sioux, and Dawes
Counties. Farther east and in Laramie Valley, precipitation will
initially fall as cold light rain with temperatures in the mid 30s
to mid 40s the farther east one goes in the southern NE Panhandle
towards Sidney. Several modes of precipitation are expected today
with snow primary north and west with drizzle and freezing
drizzle possible tonight across the High Plains of far SE WY into
central/southern NE Panhandle. A transition to all snow will occur
overnight into early morning Tuesday as cold air surges south
with phase two of the system. Stay tuned for any fine tuning of
the forecast this afternoon with the main update. See more details
below from previous discussion and an updated aviation discussion
below.

&&

.SHORT TERM...(Today and tonight)
Issued at 530 AM MDT Mon Apr 3 2023

KEY MESSAGES:

1) The anticipated major winter storm is beginning across northern
and western portions of the area this morning. Impacts will spread
south and east this evening through early Tuesday morning.

2) Confidence is high in significant snowfall falling over areas
along and north of a Wheatland to Chadron line, where 1 to 2 feet is
expected, with locally higher amounts in the Pine Ridge.

3) Considerable uncertainty remains regarding the sharp cutoff in
snowfall on the southern flank of the system, with lower confidence
in totals along and south of a Cheyenne to Alliance line.

4) Near-blizzard conditions are expected over portions of east
central Wyoming and the northern Nebraska panhandle during and after
snowfall. Impacts are likely to continue through the day on
Wednesday.

DISCUSSION:

A complex meteorological environment is setting up across the area
this morning as the major winter storm begins in some areas. At the
surface, a weak cold front came through last evening and brought in
cooler, wetter air with northeast winds to most of the area except
the mountains. Meanwhile, a 700-mb frontal boundary is stalled
across our area, with satellite water vapor imagery showing
plentiful moisture streaming from the WSW to ENE aloft overtop this
boundary. The upper level low is now located over Oregon, and is
expected to continue to dig into the Great Basin through the day
today. The digging trough will act to amplify the downstream ridge
over the plains. Southwesterly to southerly flow analyzed on the 700-
mb surface will strengthen the frontal boundary, contributing strong
frontogenesis through the day, along with isentropic upglide through
a moist environment. Thus, this boundary is expected to be the
primary axis for heavy precipitation for the first phase of this
storm, which will carry us through the day today. Models have
continued to show a slightly more northerly solution with today's
phase, which is now supported by the observations coming in. The
main plume of moisture visible on satellite is streaming in north of
Rawlins, with the more continuous snow over the Muddy Gap area on
the KRIW radar. Snow is still moving into the I-80 corridor, but the
coverage is spottier at this time than further north. Radar and
webcams also show snow filling in over Platte county and the US 20
corridor form Douglas to Chadron, though it is virga in some areas.

The main piece of uncertainty remaining for this first phase of the
storm is just how far north this frontogenetic forcing will surge
today. Hires models continue to show the axis for heavy snow
shifting northward through the day today as the amplifying southerly
flow ahead of the system pushes the stalled boundary back to the
north. Concurrently, the surface boundary is expected to retreat to
the northeast today, allowing SE flow and warmer temperatures to
creep into the southeastern portions of the CWA. The I-80
corridor from Laramie eastward should be able to reach the upper 40s
to lower 50s, but there is uncertainty on just how far north this
warm surge gets, leading to significant bust potential in the high
temperature forecast particularly around the Wheatland to Alliance
corridor. However, moderate to heavy snowfall is expected to
continue over Converse and Niobrara counties through the afternoon
hours today as the most effective isentropic lift and moisture plume
migrates overhead. The main change to today's forecast with this
update was to increase temperatures in the southeast part of the CWA
and decrease PoPs during the daytime hours following the northward
shift of the frontal boundary.

The next phase of the system will be overnight into Tuesday morning
as the 700-mb and upper level lows transit directly over the area,
and lee cyclogenesis over the plains of Colorado begins to dominate
the surface environment. Flow on the 300K isentropic surface is
forecast to become south to southeast, oriented nearly directly
perpendicular to the height contours, which indicates strong
isentropic lift over the northern half of the CWA. There will also
be continuing frontogenesis and added lift from nearby jet dynamics,
while warm/moist air advection aloft supports a very deep dendritic
growth zone over areas in between Douglas, Lusk, Chadron, and
Wheatland. Thus, expecting some substantial snowfall rates of 1 to
even occasionally 3 inches per hour during the overnight hours. This
portion of the forecast has fairly high confidence in leading to
substantial snow totals of 12 to 24 inches along and north of a
Wheatland to Chadron line. Wouldn't be surprised to see some 30 inch
totals showing up in the Pine Ridge. Increasing northeast winds as
the surface cyclone takes over to the south will also produce near
blizzard conditions. However, as mentioned by the previous shift,
there is significant vertical wind shear, so the lack of consistent
wind direction with height may limit momentum transport. The winds
look fairly marginal for a blizzard still, but may need to keep an
eye for a late upgrade for this period.

Then comes the messy part of this forecast, concerning the
southeastern portion of the CWA along and south of a Cheyenne to
Alliance line. Hires models continue to waffle slightly with the
precise track of the 700-mb low, but when this is more or less
directly over our area, these slight track shifts lead to
dramatically different snowfall outcomes. Altogether, this is
continuing to produce a low confidence forecast for these areas.
This evening, the lower atmosphere is expected to cool and moisten
as the surface front surges back to the south and gets wrapped into
the developing cyclone to the south. Meanwhile, a dry-slot in the
700-500mb layer will shift over this area. This may produce some
mist/shallow freezing drizzle in Laramie county and the southern
Nebraska panhandle with the saturated column only cooling to about -
5C. However, if any mid-level clouds manage to stick around through
the dry-slot, they should be able to provide ice crystals seed the
lower clouds and prevent a freezing drizzle scenario. The potential
is high enough to warrant a mention in the forecast though. Then,
between midnight and sunrise, the mid-level front will plow through.
This can be seen in the crashing 700-mb temperatures 06z and 18z
Tuesday. With some elevated instability in place as this occurs, we
could see some rumbles of thunder over the southern CWA during the
overnight hours. Mixed precipitation concerns will end with this
frontal passage, as all snow is expected behind. The remaining
uncertainty concerns just how far south this round of moderate to
heavy snowfall along and behind the mid-level front will extend.
However, the window does appear to be fairly short for the I-80
corridor, as isentropic descent and cold/dry air advection aloft is
modeled to push into this area by the late morning on Tuesday.
Therefore, decided to replace existing watches with Winter Weather
Advisory due to a lack of confidence in there being enough time to
reach 6 inches in these areas. Also expanded this to include the
Laramie Valley and Morrill County. There is not enough confidence to
issue a Winter Storm Warning at this time, but the potential impacts
still likely warrant a headline. It is worth noting though that a
slight shift back to the south could push some of these zones back
into potential warning criteria, so will need to continue to monitor
this for the next 24 hours. Warning criteria snowfall is more likely
in northern Laramie county, but with Cheyenne more likely to be in
the advisory range, decided to stick with the advisory. The 06z HRRR
presents an interesting scenario with rather intense precipitation
wrapping around the surface low, and delivers around 0.5" QPF to
eastern Laramie county and much of the southern Nebraska panhandle
during the morning hours on Tuesday, with higher totals in the
Wildcat Hills. All other hires models remain more modest with the
wraparound precipitation, which supports the advisory scenario, but
will need to monitor for a quick-fuse Winter Storm Warning if the
HRRR scenario becomes more likely.

During the day on Tuesday, expect winds to turn more northerly, and
then eventually northwesterly as the surface low ejects eastward
across Nebraska. Most sources of lift dissipate by the afternoon
hours, so expect snow to taper off during the afternoon and evening,
though light upslope snow showers are likely to continue through the
night, particularly around the Pine Ridge. Wind speeds are also
likely to increase during this period though, so impacts due to
blowing/drifting snow are expected to continue even after falling
snow starts to taper off. More widespread and consistent gusts of
over 35 mph are expected Tuesday afternoon and overnight, but we may
lose the visibility reduction from the heavy snowfall rates. Thus,
still don't have the confidence for a blizzard warning, but near-
blizzard conditions may continue even after the falling snow ends.
This is likely to be handled with an immediate upgrade if and when
blizzard conditions begin to materialize, but the lack of temporal
concurrence between the heavy snow and strongest winds reduces
confidence in any blizzard headlines at this time.

.LONG TERM...(Tuesday through Sunday)
Issued at 530 AM MDT Mon Apr 3 2023

Main Weather Highlights:

1) Last remaining snow showers from the winter storm will be ending
across the region. Elevated to strong wind gusts will continue to
create areas of blowing and drifting snow across the central and
northern Nebraska Panhandle and Niobrara County.

2) Beginning of a quiet and warming period across the region
expected on Thursday. Areas that received the heaviest snowfall will
remain on the cooler.

3) Temperatures continue to warm over the weekend and into next week
with temperatures climbing into the 60s for a large part of the
region by next week.

Overview: The major winter storm will be ending as we progress into
Wednesday. Any remaining snow showers will push east with just some
lingering chances across the highest terrain. A strong and cold NW
flow will keep temperatures cold across much of the region, and with
gusts in the 40 to 45 mph range and fresh snowpack, areas of blowing
and drifting snow will continue to create impacts across central and
northern Nebraska Panhandle. Heading into Thursday a long stretch of
quiet weather with warming temperatures is expected as the active
storm track transitions into a zonal flow for the end of week,
before a large amplitude ridge builds across the region over the
weekend and into next week. Underneath this ridge temperatures will
rebound nicely with several days of temperatures in the 60s expected
across much SE Wyoming and the Nebraska Panhandle. Would be
surprised if we see more widespread 70F readings Sunday into Monday.

Discussion: As the storm system begins to depart the region, models
are keen keeping strong to elevated winds across a large portion of
the Nebraska Panhandle as a band of strong H7 winds develop on the
backside of the closed low. In addition strong NW flow becomes the
dominant flow allow for some decent CAA to filter into the region.
With fresh snowpack expected across much of the region and this
strong NW flow, temperatures will remain cold on Wednesday.

In the wake of the storm, progressive zonal flow develops with weak
pulses moving through. Not expecting much in the way of impacts as
limited moisture and weak upper level winds will be common which
should allow for quiet weather conditions with just some breezy
conditions expected. By the end of the weekend a large amplitude
ridge is being advertised in the models with some significant warming
occurring. Much of the area toward the end of the weekend should see
seasonal temperatures with continued warming expected into next week.

&&

.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1123 AM MDT Mon Apr 3 2023

Large aviation impacts occurring in pockets across the region
currently with additional significant impacts expected overnight
and through the day Tuesday. LIFR conditions due to snow and low
visibility occurring at RWL and CDR currently and these sites will
remain impacted at this level through at least mid-day Tuesday.
for KLAR, expect VCSH drizzle to -RA at times then switching over
to -SN through overnight into Tuesday morning with lowering
visibilities and IFR/LIFR conditions. Farther east, KCYS will be
more tricky with precipitation staying just north of terminal
through the day but then -FZDZ to -SN overnight into Tuesday
morning with full switch to -SN after 10Z Tuesday. For Nebraska
Panhandle, impacts will be significant at KCDR with upwards of
18-24" of snow now through Tuesday afternoon. Snowfall gradient
will be tight going south to KAIA and KBFF with at least 3-6" of
snow being probable. IFR conditions likely at these locations.
KSNY will be the least impacted of all sites through the event
with least snow but IFR ceilings and at least 2-3SM visibility
drops from -SN Tuesday morning is likely. -DZ could be possible at
KSNY this evening with some -FZDZ mixed in through 12Z Tuesday.
Icing will be a concern on aircraft control surfaces for portions
of the NE Panhandle south of Chadron. Improvements will slowly
occur Tuesday evening into Wednesday morning.

&&

.FIRE WEATHER...
Issued at 500 AM MDT Mon Apr 3 2023

Minimal fire weather concerns through the middle of the week due
to an incoming major winter storm and well below average
temperatures expected. A much warmer and drier pattern is
increasingly likely by this weekend.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Winter Storm Warning until 6 PM MDT Wednesday for WYZ102-108.

     Winter Storm Warning until 6 AM MDT Wednesday for WYZ101-103-106-
     107-116.

     Winter Storm Warning until 6 PM MDT Tuesday for WYZ104-105-109-
     110.

     Winter Weather Advisory until 6 PM MDT Tuesday for WYZ111-113.

     Winter Storm Warning until 11 PM MDT Tuesday for WYZ112-114.

     Winter Weather Advisory from 6 PM this evening to 6 PM MDT
     Tuesday for WYZ115-117>119.

NE...Winter Storm Warning until 6 PM MDT Wednesday for NEZ002-003-095-
     096.

     Winter Weather Advisory from 6 PM this evening to 6 PM MDT
     Wednesday for NEZ019>021.

&&

UPDATE...JSA
SHORT TERM...MN
LONG TERM...AW
AVIATION...JSA
FIRE WEATHER...MN
Hazardous weather outlook, Apr 3, 5:31 AM MDT, 9 hours 26 minutes before
Hazardous Weather Outlook
National Weather Service Cheyenne WY
531 AM MDT Mon Apr 3 2023

NEZ002-003-019>021-054-055-095-096-WYZ101>119-041145-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
531 AM MDT Mon Apr 3 2023

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

A major winter storm is beginning to impact portions of southeast
Wyoming and the Nebraska panhandle. Moderate to heavy snowfall is
expected along and north of a Rawlins to Wheatland to Chadron
through the day tonight. Very heavy snowfall is expected over east
central Wyoming and the northern Nebraska panhandle overnight
tonight, with near blizzard conditions expected. See latest Winter
Storm Warning product for more details.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Strong northerly winds and heavy snow will continue through
Tuesday morning before falling snow tapers off during the
afternoon and evening. Strong winds may continue to produce
blowing and drifting snow through the day on Wednesday.

.Spotter information statement...

Spotters are encouraged to report snowfall totals or hazardous
conditions to the National Weather Service in Cheyenne over the
next several days.

In the hours before

Local storm report, Apr 3, 11:13 AM MDT, 3 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
1113 AM MDT MON APR 3 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0851 AM     HEAVY SNOW       CHADRON                 42.83N 103.00W
04/03/2023  M7.5 INCH        DAWES              NE   PUBLIC

            RECEIVED REPORT VIA FACEBOOK WITH A PICTURE INCLUDING A
            RULER. SNOW MEASURED ON DECK.

&&

ANGELA.MOSE
Local storm report, Apr 3, 1:50 PM MDT, 1 hour 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
150 PM MDT MON APR 3 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     HEAVY SNOW       GLENROCK                42.86N 105.86W
04/03/2023  M14.0 INCH       CONVERSE           WY   EMERGENCY MNGR

0145 PM     HEAVY SNOW       DOUGLAS                 42.76N 105.39W
04/03/2023  E0.0 INCH        CONVERSE           WY   EMERGENCY MNGR

            EMERGENCY MANAGER ESTIMATED 10 TO 11 INCHES HAD FALLEN IN
            DOUGLAS.

&&

LAUREN.KUBELKA
Local storm report, Apr 3, 1:55 PM MDT, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
155 PM MDT MON APR 3 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0154 PM     HEAVY SNOW       DOUGLAS                 42.76N 105.39W
04/03/2023  M10.0 INCH       CONVERSE           WY   BROADCAST MEDIA

            10 INCHES OF SNOWFALL MEASURED WITH SLOPPY, WET
            PAVEMENTS.

&&

LAUREN.KUBELKA

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 3, 2:57 PM MDTWinter Storm WarningCYSConverse, Niobrara36 hr

Nearby

Blizzard Warnings in Wyoming, 2023Blizzard Warnings in Nebraska, 2023Every blizzard warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.